Sundance® / Jacuzzi® LED Series Control Board – 1 & 2 Pump, Circulation Pump Systems (2002–2014+) Part #6600‑726

⚠️ IMPORTANT DISCLAIMER – PLEASE READ BEFORE PURCHASING

• There are no refunds or returns on electronic spa parts.
• Please verify compatibility with your hot tub model before ordering.
• All electronic components are covered under the original manufacturer’s warranty.

Overview

Part 6600‑726 is an OEM LED‑series control board designed for Sundance® and Jacuzzi® spas using 1‑pump or 2‑pump configurations with a dedicated circulation pump. It is engineered for 240V dedicated power systems and replaces several earlier Sundance®/Sweetwater/Jacuzzi® LED‑platform PCBs.

This is one of the most universal control boards Sundance® produced, covering multiple series and model years across spa families.

6600‑726 fits 780 Series, Select Series, J‑200, and J‑300 models using LED-style topside interfaces.

Compatible Spa Models & Years

✔ Sundance® 680/780 Series 2014-2017

(LED‑platform models with circulation pump)

• Hartford
• Hawthorne
• Burlington
• Denali
• Tacoma
• McKinley
• Ramona
• Edison (early LED configuration)

✔ Sundance® Select Series 2014-2019

• Constance®
• Victoria®
  (as long as LED control platform and circulation pump are present)

✔ Jacuzzi® J‑200 / J‑300 Series (LED Era) 2002-2014

• J‑210
• J‑215
• J‑220
• J‑225
• J‑235
• J‑245
• J‑275
• J‑280
  (for LED-systems ONLY and where circulation pump is present)

✖ NOT compatible with:

• 780 ENC boards (use 6600‑404 / 6600‑848)
• 880 or 980 Series systems
• Non‑LED topside systems
• Convertible 120V systems
• Spas without a dedicated circulation pump

Technical Details

• Voltage: 240V dedicated (3‑wire systems only)
• System Type: LED control platform
• Pump Support:
  • Pump 1: 2‑speed
  • Pump 2: 1‑speed (if equipped)
  • Dedicated circulation pump: YES (required)
• Topside Compatibility:
  • Sundance® LED control panels
  • Jacuzzi® J‑200/J‑300 LED topside panels
• Heater Support: Standard low‑flow 5.5 kW heater
• Features:
  • LED lighting memory & driver circuits
  • Filtration scheduling
  • Pump overheat logic
  • Watchdog & overheat protection

Purpose & Performance

The 6600‑726 LED Control Board manages:

• Jet pump sequencing and speeds
• Dedicated circulation pump operation
• Heater activation and protection logic
• LED lighting system control
• Diagnostic fault monitoring (FLO, OH, Sn, watchdog, pump errors)
• Filtration timing cycles

Replacing this PCB resolves issues such as:

• No heat
• Pump not responding or stuck on low/high
• LED panel not communicating
• FLO or watchdog fault loops
• Circulation pump not activating

Replaces / Supersedes

This board replaces several older LED‑series circuit boards including:

• 6600‑042
• 6600‑046
• 6600‑088 / 6600‑089
• 6600‑208
• 6600‑226 / 6600‑286
• 6600-288
• 6000-167

Ordering Notes

• Only for LED‑platform Sundance®/Jacuzzi® spas with a circulation pump
• Not for use on ENC (2017+) or BP (2022+) systems
• Must match topside (LED-only)
• Electronics are non‑returnable
• Verify your spa’s serial number and control panel part number before ordering
• NOTE: 6600-726/6000-167/6600-288/6600-046/6600-287 are the same boards with different
  micro chips.